J-GLOBAL ID:200904059351520756  Research Project code:6000001485 Update date:Dec. 07, 2007

The chill specimen made by using molten metal of spheroidal graphite cast iron

Study period:2006 - 2006
Research field (1): Metallic physical properties
Research overview:
For developing the detection device of chill in the cast iron, making the cast iron specimens with only chill but without other defect was examined. JIS FCD400 of spheroidal graphite cast iron was used. The thickness of the specimens were changed to 6mm and 3mm with diameter of φ50mm. As a result, in case of the test pieces of 6mm in the thickness, the chill specimen not defective was able to be made. However, a part of pearlite was generated on the surface of the test piece. Moreover, a lot of chill was generated in each material at the test piece of 3mm. And, when the volume of the down sprue was increase by a factor of 10, it has been understood that shrinkage cavity in the material disappears.
Keywords (5):
chill、 shrinkage cavity、 spheroidal graphite cast iron、 down sprue、 nondestructive examination ,  引け巣 ,  球状黒鉛鋳鉄 ,  湯口 ,  非破壊試験
Researcher representative of the project  (1):
  • 池 浩之
Research program: -

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